Re: mysterious image

From: Tom Wagner (
Date: Mon Feb 27 2006 - 21:18:59 EST

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    ----- Original Message ----- 
    From: "Paul Sventek" <>
    To: "seesat" <>
    Sent: Monday, February 27, 2006 6:38 PM
    Subject: mysterious image
    > A friend of mine emailed several digital images he took this morning (Feb 
    > 27) while imaging the area around Antares. On all images is an odd, 
    > elongated, greenish object north and west of Antares.
    The fact that the anomaly keeps its shape over such a long time and because 
    they look very much like the internal reflections that I've seen in many of 
    my own photos, I would say that that is what it is, an internal reflection. 
    The magnesium fluoride that is used as a multicoating on the lenses is 
    greenish which is probably why the anomaly  itself looks green. I believe 
    it's faint because the MgF2 is doing its job.
    The fact that it shifts in position might reveal that the light causing the 
    effect was external. The guided camera moved but the interfering light did 
    not. Maybe.
    Tom  Iowa  USA
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